EP 0495527 A1 19920722 - Catalysts for the polymerization of olefins.

Title (en)

Catalysts for the polymerization of olefins.

Title (de)

Katalysatoren zur Olefinpolymerisation.

Title (fr)

Catalyseurs de polymérisation d'oléfines.

Publication

EP 0495527 A1 19920722 (EN)

Application

EP 92102477 A 19880405

Priority

EP 88303007 A 19880405
JP 11177587 A 19870508
JP 8242587 A 19870403

Abstract (en)

A catalyst for the polymerization of olefins comprising a combination of a solid catalyst component (A) comprising a solid catalytic complex (i) containing titanium, magnesium and a halogen as the essential ingredients with an organoaluminium compound (B), wherein said solid catalyst component (A) is obtained by bringing the following ingredients (ii) and (iii) in contact with said solid catalytic complex (i): Ingredient (ii): a silicon compound represented by the general formula: <CHEM> wherein R<1> and R<2> each stand for a hydrocarbyl residue, X denotes a halogen, and m and n are such that 0</=m</=3 and 0</=n</=3 are satisfied on condition that 0</=m+n</=3, and Ingredient (iii): an organomagnesium compound. The catalyst makes it possible to eliminate what is called "outside electron donor" as a component for making up a final catalyst system.

IPC 1-7

C08F 4/656; C08F 10/00

IPC 8 full level

C08F 4/64 (2006.01); C08F 4/656 (2006.01); C08F 10/00 (2006.01)

CPC (source: EP US)

C08F 10/00 (2013.01 - EP US); Y10S 526/904 (2013.01 - EP US)

Citation (search report)

[Y] EP 0086288 A1 19830824 - MITSUI PETROCHEMICAL IND [JP]
[Y] EP 0095855 A1 19831207 - UBE INDUSTRIES [JP]
[A] EP 0209104 A1 19870121 - NAT DISTILLERS CHEM CORP [US]

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0285459 A2 19881005; EP 0285459 A3 19900718; EP 0285459 B1 19930310; AU 1416088 A 19881006; AU 602567 B2 19901018; BR 8801533 A 19881108; CA 1318657 C 19930601; DE 3855640 D1 19961205; DE 3855640 T2 19970528; DE 3878953 D1 19930415; EP 0495527 A1 19920722; EP 0495527 B1 19961030; US 4870043 A 19890926; US 4972034 A 19901120

DOCDB simple family (application)

EP 88303007 A 19880405; AU 1416088 A 19880405; BR 8801533 A 19880330; CA 563294 A 19880405; DE 3855640 T 19880405; DE 3878953 T 19880405; EP 92102477 A 19880405; US 17747888 A 19880401; US 38778889 A 19890801